Niven: It's the kid from the spaceship. Get him off the car.

[After Sam rescues Andrew by shooting him]

Andrew: [musingly] I can't believe you shot me.

Sam: Well, what would you have done?

Andrew: [nonchalant] Oh, I'd have shot you, of course.

Sam: So if the two of you are being shot at, which bullet do I take?

Andrew: Why you must try for both, of course.